Hardware manual

35
4.4 Reliability
4.4.1 IT-3000
Table 4.15
Item Specification Remark/Condition
Service life
Backlight 10,000 hours At half-life period, ordinary temperature
MTBF 20,000 hours Electronic parts only
No. of times of
installing/removing the paper
holder to/from the terminal
500 times
No. of times of opening/closing
the paper outlet cover
5,000 times
No. of times of cutting paper with
the cutter on the printer
15,000 times or greater
Printer life 50 Km In the direction of paper feeding. With print
ratio of 25% (excluding label papers)
C-MOS Imager 70,000 hours
Trigger key 1,000,000 times For each trigger key (R) or (L).
Other keys 500,000 times For each key.
Tapping with the stylus 800,000 times Touch
panel
Writing 100,000 characters with
Katakana characters
With 0.8R polyester stylus with load of 250 g
applied
No. of times of mounting
/dismounting the terminal
on/from the cradle
10,000 times
No. of times of
connecting/removing the power
jack of AC adaptor
1,000 times
No. of times of opening/closing
the power jack cover
1,000 times
No. of times of
installing/removing the battery
pack to/from the battery
compartment
5,000 times
No. of times of opening/closing
the battery pack cover
5,000 times
No. of times of
installing/removing an SD
memory card to/from the slot
5,000 times
No. of times of opening/closing
the SD memory card cover
5,000 times
No. of times of
installing/removing a PC card
to/from the PC card slot
5,000 times
No. of times of opening/closing
the PC card slot cover
5,000 times
No. of times of
installing/removing a device
to/from the 14-pin serial
connector on the terminal
5,000 times
No. of times of opening/closing
the 14-pin interface cover
5,000 times
No. of times of opening/closing
the 8-pin interface cover
5,000 times
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